.iframeHead{
    width: 100%;
    height: 50px;
    background-color: #fff;
    font: 15px/50px "Avenir, Helvetica, Arial, sans-serif";
}
.iframeHead span{
    height: 100%;
    float: left;
    margin-left: 2.040816%;
    margin-right: 1%;
    color: #7a7a7a;
    cursor: pointer;
}
.iframeHead span:hover{
    color: #000;
}
.iframeHead em{
    color: #999;
}
input[type = 'text'],select{
    height: 38px;
    border-radius: 5px;
    border: none;
    outline: none;
    text-indent: 16px;
}
.inp {
    display: inline-block;
    border-radius: 5px;
    border: 1px solid #dcdfe6;
    color: #ccc;
    font-size: 13px;
}

::-webkit-input-placeholder {
    /* WebKit browsers */
    color: #ccc;
}

:-moz-placeholder {
    /* Mozilla Firefox 4 to 18 */
    color: #ccc;
}

::-moz-placeholder {
    /* Mozilla Firefox 19+ */
    color: #ccc;
}

:-ms-input-placeholder {
    /* Internet Explorer 10+ */
    color: #ccc;
}

select {
    /*Chrome和Firefox里面的边框是不一样的，所以复写了一下*/
    /* border: solid 1px #000; */
    /*很关键：将默认的select选择框样式清除*/
    appearance:none;
    -moz-appearance:none;
    -webkit-appearance:none;
    /*将背景改为红色*/
    /* background:red; */
    /*加padding防止文字覆盖*/
    /* padding-right: 14px; */
    color: #ccc;
}

.option{
    position: absolute;
    top: 55px;
    left: 0;
    width: 140px;
    border: 1px solid #dcdfe6;
    border-radius: 3px;
    z-index: 5;
    background-color: #fff;
    display: none;
    padding-top: 5px;
    padding-bottom: 5px;
    overflow: auto;
    max-height: 200px;
}
.option li{
    text-indent: 5px;
    line-height: 40px;
}
.option li:hover{
    background-color: #e9ebf0;
}
.option:before{
    box-sizing: content-box;
    width: 0px;
    height: 0px;
    position: absolute;
    top: -12px;
    left:15px;
    padding:0;
    border-bottom:6px solid #FFFFFF;
    border-top:6px solid transparent;
    border-left:6px solid transparent;
    border-right:6px solid transparent;
    display: block;
    content:'';
    z-index: 12;
}
.option:after{
    box-sizing: content-box;
    width: 0px;
    height: 0px;
    position: absolute;
    top: -14px;
    left:14px;
    padding:0;
    border-bottom:7px solid #cccccc;
    border-top:7px solid transparent;
    border-left:7px solid transparent;
    border-right:7px solid transparent;
    display: block;
    content:'';
    z-index:10
}
.inp .icon-xia{
    transition-duration: .3s;
}